L., Sp. Pl. 555 (1753).
Synonymy: Not Applicable
Common name: Sharp buttercup, burr (or prickle-fruit) buttercup.
Annual, 10-50cm high, almost glabrous; stems stout, much branched, spreading and ascending; basal leaves with long petioles; blades roundish, cordate, 1.5-5 cm long, with 3-5 shallow rounded coarsely crenate-dentate lobes; upper cauline leaves cuneate at the base with 3 narrow cut or toothed divisions.
flowers many, pedicellate, 8-10 mm diam.; sepals 5, reflexed; petals 5, 7-9 mm long, slightly longer than the sepals; fruiting pedicels not thickened.
Achenes 8-16, ovate, 7-8 mm long, flattened, brown with a green strongly keeled and grooved smooth margin, the faces with numerous short spiny tubercles (rarely almost smooth); beak stout, 2-3 mm broad, nearly straight, almost half as long as the body of the achene; torus slightly pubescent.
Image source: fig 197d in Jessop J.P. & Toelken H.R. (Ed.) 1986. Flora of South Australia (4th edn).|
Cunningham et al. (1982) Plants of western New South Wales, p. 310.
S.Aust.: FR, EP, NL, MU, SL, SE. W.Aust.; Qld; N.S.W.; Vic.; Tas. native in southern Europe.
Flowering time: Aug. — Dec.
SA Distribution Map based
on current data relating to
specimens held in the
State Herbarium of South Australia
Not yet available